Patent GB-440763-A (GB)
Title: Improvements in or relating to coin-controlled vending and/or change giving machines
IPC: G07F5/24
Filed: 1935-03-12
Abstract: 440,763. Coin - controlled vending - machines with change-giving. HILDEBRANDT, W. H. F., 27, Võstmannagatan, Stockholm. March 12, 1935, No. 7727. Convention date, Sept. 21, 1934. [Class 27] Relates to a coin-controlled machine, which receives coins, computes their value, and delivers articles and/or coins in exchange, of the kind comprising a number of cammembers displaced in accordance with the computed amount, a number of coin ejecting devices for different coin denominations, and a number of abutment members allotted to said ejecting devices and co-operating mechanically with the cam members. According to the invention the cam members or the abutment members are shiftable into primary and secondary positions. In the primary position no article is delivered and certain cam members co-operate with certain abutment members to cause ejection of coins corresponding to the total amount inserted. In one or more of the secondary positions, when one or more articles are to be delivered, other cam members co-operate with abutment members to cause delivery of articles and ejection of coins corresponding to the difference between the price of the articles and the sum inserted. The apparatus is described in connection with Swedish currency and has six shoots receiving 2Kr, 1Kr, 50, 25, 10, and 5 ore pieces respectively. It is used in connection with the delivery of one, two or three tickets of the value of 25 ore each. An inserted coin bridges a fixed contact 61, Figs. 7 and 35, and a movable contact 62 carried by a shaft 60, thereby closing the circuit of an electric motor 32 and energizing an electromagnet 64 which attracts its armature 63 and rocks the shaft 60 to withdraw all the contacts 62 from the shoots. A mercury switch 65 is also actuated to maintain the circuit of the motor, which drives a shaft 102 geared to a shaft 52. The shaft 52 carries discs 67, one for each shoot, and each provided with a coin receiving notch 74, which deposits the coin in a shoot 20 from which it is transferred by one of a series of curved discs 82 to a shoot 101 leading to a change tube containing coins of the same denomination. There are a number of pairs of contacts 61, 62, change tubes and transferring discs, each set corresponding to a coin insertion shoot. The coin while being transferred to shoot 101 actuates an arm to allow a coupling member 106, Fig. 10, to be clutched to the shaft 102 for one revolution. A member 109 connected to member 106 engages a toothed wheel 132 on a computing shaft 129, each member 109 having a number of teeth corresponding to the number of units of coin value, 5 ÷re, in the inserted coin. For example, the member 109 for the 10 ore shoot has two teeth. A cam actuated plate 123 has a tooth which engages another wheel 131 on the shaft 129 to stop this after it has been rotated the required amount. The computing shaft 129, which is thus set forward a number of steps, corresponding to the number of units in the inserted coin, rotates a cam shaft 183, Fig. 14, to a corresponding extent against the action of a spring 165, the shaft 183 being held in this position by a lever 167 engaging a ratchet wheel 163. When a delivery shaft 170 has made one revolution, a cam thereon trips the lever 167, allowing the shafts 183, 129 to return to zero position. The cam shaft 183 has six sets of cam discs, each set corresponding to a coin which can be inserted and comprising four discs, such as 261, 271, 281, 291, Fig. 16. In the primary position of the shaft 183, the first discs, such as 261, of each set co-operate with rocking feeler fingers or abutments. When a single ticket is to be issued, the shaft 183 is shifted to the left to a secondary position bringing the second disc 271 of each set into co-operation with the feeler fingers. For the issue of two and three tickets at a time, the shaft is moved into further secondary positions where the .third and fourth discs of each set co-operate with the fingers. The delivery shaft 170, Fig. 18, is started when any of ticket issuing or coin return buttons is actuated, or after the lapse of a predetermined time. It has a pair of connected cams 42 which actuate levers 44 and allow arms 197 to be moved by springs 206 towards the cam discs, such as 261. The arms 197 carry feeler fingers 202 which engage the cams and allow the arms to move according to the setting of the cams. When an arm 197 moves, it lifts a plate 222 along a corresponding change tube 30, the plate having a hole 223 in which a pusher 224 engages, the pushers for the various change tubes being pivoted at 238 to a slide 38. The slide 38 is actuated by a pin 50 on the cam 42 engaging a rocking frame 34 connected by a link 36 to the slide. Normally the pushers slide in guideways 239 beneath the columns of coins, but when a plate 222 is raised the corresponding pusher engages and delivers one or more coins to a delivery shoot 248. At the end of one revolution of the shaft 170 the parts are restored to their initial positions. The shaft 170 is driven from a wheel 339, Fig. 33, when a clutch 338 is actuated to couple this wheel to a wheel 341 driven from the shaft 102. The clutch and its wheels 339, 341 are rotatably mounted on a shaft 296 which is in alignment with but is unconnected to the cam shaft 183. This shaft 296 carries three cams 400, 401, 402, which co-operate with the ends 403, 404, 405 respectively of push buttons 10, 11, 12, Fig. 25, for the issue of one, two, or three tickets, when one of these is pushed in. An arm 391, Fig. 33, fixed to a shaft 308, which is rocked when a ticket button is actuated, releases a lever 393, 398 to allow the end 398 of this to engage a pin 421 on a rod 415 slidable through apertures in the cams 400 ... 401. This rod 415, when thus moved to the left against the action of a spring 421, enters a hole in a disc 418 integral with the gear wheel 339. The shaft 296 with its cams is thereby rotated through one revolution and by the engagement of one of the cams with the pushed in rod, such as 400, Fig. 25, the shaft 296 is moved to the left. This movement is transmitted to the aligned cam shaft 183 which is shifted against the action of a spring-controlled rod 156, Fig. 14, to bring the appropriate discs of the sets of cam discs such as 261 ... 291 into the path of the feeler fingers 202. The cam discs 271, 281, 291, Fig. 16, have increasingly longer portions B, C, D, corresponding to the price of one, two, and three tickets, and free from indentations which would allow changegiving movement to the feeler fingers. The setting of the cam-shaft 183 by means of a cam 313, Figs. 16 and 21, rocks an arm 311 and a shaft 310 carrying three arms 319 ... 321, one for each ticket button. A high portion, such as 326, on one or more of the arms, if the amount inserted is sufficient, comes opposite a projection 322 on a corresponding lever 306, there being three levers pivoted on a shaft 305 and controlled by springs 327. When a button, such as 10, is pushed in, a rocker 303 carried thereby meets the end 307 of the corresponding lever 306 and is tilted so that it can rock a shaft 308 by meeting a projection 309 on this shaft. A shoulder on the shaft 308 rocks a latch 328, 330 to release an arm 331 having a projection 334 to actuate the clutch 338. The rocking of the shaft 308 releases the lever 393, 398 which brings into action the cams 400...401 for shifting the cam shaft to its secondary positions. If no ticket is required, a return button 13 is pushed in. This, through a lever 440, actuates the latch 328, 330 without rocking the shaft 308 so that the cam shaft 183 remains in its primary position. When one of the ticket buttons is depressed, it locks the other two against actuation by moving interlocking rods 372, 373, Fig. 25, which co-operate with plates 364, 365, 366 on the button stems. The button is held depressed, until the ticket and change is delivered, by a pawl 377 engaging a notch on its stem, the locking pawls being controlled by a sliding spring-controlled plate 384. The plate 384 is normally held by the hooked armature 449, Fig. 35, of an electromagnet 450 engaging a projection 448 on the plate, but is released to hold the pawls 377 in locking position when a coin is inserted. When the clutch 338 is actuated, the wheel 339 drives a wheel 422 on a shaft 423 having cams 484, 620 to actuate switches 486, 622, Fig. 35, which open circuits at the proper time to stop the motor 32 and allow parts to return to their initial position. If no button is actuated, a timing mechanism, set forward step-by-step by a ratchet drive from a cam 466 on the shaft 102, Fig. 21, actuates the latch 328, 330 to cause automatically the return of the coins inserted in the same way as if the button 13 were depressed. In a modification, the cam shaft 183 is not moved, but the feeler fingers are shifted relatively thereto into secondary positions. In a further modification, the motor 32 instead of being started by the insertion of a coin, is started when any one of the ticket or return buttons is actuated. In this case, a button is first actuated, then the coins are inserted in the various shoots. Returning coin ; coin-slit closing-devices.- In order to prevent coins of greater total value than 400 ore from being passed to the shoots 20 and actuating the computing shaft, a switch device 80 pivoted on a shaft 81, Fig. 7, is provided in each shoot 20 to divert excess coinage to return shoots 26<a>. A chain 495, Fig. 41, bearing fingers 497 . . . . 502 is driven from the computing shaft 129 through a wheel 162. These fingers actuate in succession at appropriate intervals a pin wheel 503, the shaft 504 of which drives a shaft carrying arms 506 . . . . 511 for setting the switches 80 in succession in the coin return position, starting with the switch for the 2-kronor shoot. The switch devices are also set for returning coins, when any of the buttons pushed in or the timing-